Midday Market Movers: Nautilus Surges, Idenix Pharma Collapses

The stocks which have made moves at midday:

Idenix Pharmaceuticals (NASDAQ: IDIX) off 47% to $3.17 based on an announcement that the company received verbal notice on Friday, September 3, 2010 from the U.S. Food and Drug Administration that the IDX184 and IDX320 programs have been placed on clinical hold.

GT Solar International (NASDAQ: SOLR) is down 10% to $7.87 after disclosing that it would have a secondary offering of 10,000,000 shares of its common stock by one selling stockholder.

Nautilus (NYSE: NLS) is higher by 8% to $1.41 after it announced that it raised $5 million from a debt sale to its largest shareholder–Sherborne Investors GP .

Douglas A. McIntyre